$OpenBSD: patch-ext_extconf_rb,v 1.2 2015/01/10 17:29:14 jeremy Exp $
--- ext/extconf.rb.orig	Wed Dec 31 16:00:00 1969
+++ ext/extconf.rb	Fri Nov 28 18:16:12 2014
@@ -98,7 +98,7 @@ if RbConfig::CONFIG["host_os"] =~ /mingw/
   add_define "FD_SETSIZE=32767" unless found
 end
 
-# Main platform invariances:
+create_makefile "rubyeventmachine"
 
 case RUBY_PLATFORM
 when /mswin32/, /mingw32/, /bccwin32/
